This article was previously published under Q318746
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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
When you (as an administrator) try to start a service in the Services tool in Control Panel, you may receive the following error message:
Could not start the Microsoft Exchange Information Store service on Local Computer.
Error 123: The filename, directory name, or volume label syntax is incorrect.
The following error message may be logged in the System log:
Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7000 Computer: SERVER Description: The Microsoft Exchange Information Store service failed to start due to the following error: The filename, directory name, or volume label syntax is incorrect.
NOTE: These error messages come from the Services Control Manager and can occur for any service, not just the Exchange Server services.
To work around this issue, in the registry, make sure that the ImagePath value for the service that returned the error message does not contain any extra characters or spaces. To do so, you have to use Registry Editor.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To make sure that the ImagePath value for the service that returned the error message does not contain any extra characters or spaces:
Start Registry Editor (Regedt32.exe).
Locate the ImagePath string value under the following key in the registry:
NOTE: This step applies to any service under the Services key in the registry.
Open the ImagePath value on the right, and then make sure that it does not contain any extra colons (:), spaces, or characters.
The following is an example of correct string value for the Exchange Information Store service:
Quit Registry Editor.
You can use tools such as Regmon to track the service, program, or process that is adding the extra characters or spaces to the ImagePath value for that service. For additional information about Regmon, visit the following Sysinternals Web site:
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